Granted. The next time you start to feel tired you immediately fall into a deep and restful slumber.
Once asleep though you start having a dream where you are at work. As you walk into the office you think to yourself "I wish I could have gotten a little more sleep" and immediately fall asleep in lobby.
As you sleep in the lobby you have a dream that you are a child again, traveling in the backseat of your parents car. You feel more safe and secure there than you have in years, and you consider having a little nap until the trip is over, and immediately fall asleep
Eventually you fall so deep into dreams within dreams that you find yourself in a land of pure fantasy where you are the supreme overlord.
You rule over your dark dominion for the next 3000 years, only occasionally having a recurring nightmare that you are a severe narcoleptic confined to a hospital bed